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3D-Printed frequency-scanned slot array in grating waveguide

Author
Garcia-Marin, Eduardo; Masa Campos, José Luisuntranslated; Sanchez-Olivares, Pablo; Guilarte-Bellod, Beatriz
Entity
UAM. Departamento de Tecnología Electrónica y de las Comunicaciones
Publisher
Elsevier
Date
2021-06-18
Citation
10.1016/j.aeue.2021.153866
International Journal of Electronics and Communications (AEÜ) 138 (2021): 153866
 
 
 
ISSN
1434-8411
DOI
10.1016/j.aeue.2021.153866
Funded by
This work was supported by the Spanish Government under grant TEC2016-76070-C3-1-R (Agencia Estatal de Investigación, Fondo Europeo de Desarrollo Regional: AEI/FEDER, UE)
Project
Gobierno de España. TEC2016-76070-C3-1-R
Editor's Version
https://doi.org/10.1016/j.aeue.2021.153866
Subjects
Corrugated waveguides; Gratings; Layered manufacturing; Linear antenna arrays; Slot antennas; Informática
URI
http://hdl.handle.net/10486/700692
Rights
© 2021 by the authors

Licencia de Creative Commons
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.

Abstract

In this work, a linearly-polarized frequency-scanned slot-antenna linear array fed by a travelling wave in grating waveguide is designed at 17 GHz. Additionally, the insertion of periodic gratings in the bottom broad-wall of the feeding waveguide reduces the guided wavelength of the fundamental propagating mode. Therefore, steering angles around broadside can be attained in the radiation pattern, contrary to conventional travelling-wave designs where grating lobes would inevitably appear. Furthermore, tuning posts are included in the radiating element design to mitigate the mismatch provoked by uniform phase feeding. A 16-element array is fabricated to validate the design, which experimentally shows a continuous angular scanning range of ±10°around broadside in the band from 16 to 18 GHz, with a peak gain of 18 dBi and a maximum gain drop of 4 dB
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Google™ Scholar:Garcia-Marin, Eduardo - Masa Campos, José Luis - Sanchez-Olivares, Pablo - Guilarte-Bellod, Beatriz

This item appears in the following Collection(s)

  • Producción científica en acceso abierto de la UAM [15086]

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